Process of forming building blocks



y 1954 E. GARNICH 2,677,856

PROCESS OF FORMING BUILDING BLOCKS Filed Jan. 13, 1950 2 Sheets-Sheet 1 1 5a 55 i 59 V i J i A'I'I'DRN EYS May 11, 1954 E. GARNICH PROCESS OF FORMING BUILDING BLOCKS 2 Sheets-Sheet 2 Filed Jan. 15, 1950 A INVENTOR. 77727 far/726V? ATTD R N EYS Patented May 11, 1954 UNITED STATES PATENT OFFICE 2,677,856 PROCESS OF FORMING BUILDING BLOCKS Emil Garnich, Egg Harbor City, N. J. Application January 13, 1950, Serial No. 138,433

1 Claim.

This invention relates to a slump or press face process for forming building blocks, bricks, lintels, sills and slabs with various uneven rock-like faces wherein a hard face is provided without extra water for curing.

The purpose of this invention is to provide an improved method of forming building blocks with hard faces wherein building blocks may be formed in quantity with faces of different designs.

Building blocks of this type are formed with dry tamped faces and the dry tamped face requires plenty of water. These blocks are very seldom cured properly as workmen do not use sumcient water. With this thought in mind this invention contemplates a process of forming concrete building blocks with hard faces wherein the rough material is set by vibrating and the rock face is formed by placing wet material below the material forming the body of the block with a facing plate in which the design is provided below and protruding into the wet material.

The object of this invention is, therefore, to provide a method for forming concrete building blocks with different facing designs used on the blocks and in which the facing is hard and smooth.

ing blocks in which the same rock face plate is used for providing different designs of rock faces by slumping the block.

A further object of the invention is to provide an improved method of forming concrete blocks with uneven rock-like faces of different designs in which blocks are formed in quantity and in which the blocks are comparatively inexpensive.

With these and other objects and advantages in view the invention embodies a machine having a box-like form with facing plates of different designs adapted to be positioned with the design protruding into materials in the forms, means for vibrating the forms and means for mechanically turning and again vibrating the forms to cause the materials to partially drop away from the facing plates and to facilitate removing the block.

Other features and advantages of the invention will appear from the following description taken in connection with the drawings wherein:

Figure 1 is a view showing a side elevation of th improved block forming machine with the form in the position in which it is finally vibrated and from which blocks are removed.

Figure 2 is a similar view showing the form in the vibrating position.

Figure 3 is an end elevational view showing the machine with the form in the vibrating position as illustrated in Figure 2.

Figure 4 is a cross section through the form with the form in the vibrating position as illustrated in Figure 2 and showing the facing plate on the lower side of the block.

Figure 5 is a view similar to that shown in Fig. 4 showing the form turned over to the finishing and block removing position as illustrated in Figure 1.

Figure 6 is a view also similar to that shown in Fig. 4, showing the form inverted and the facing plate removed.

Referring now to the drawings wherein like reference characters denote corresponding parts the block forming machine on which the improved process of this invention is carried out is formed with a frame 10, having a box-like form II with a vibrator plate [2 and an ejecting plate I3 which is actuated through cams l4 and I5 by a hand lever It on a shaft H.

Th frame II) is formed. as illustrated in prior Patent No. 2,559,422.

The vibrating plate l2 rests on springs l8 and a shaft 19 which is journaled in bearings 26 on the under side of the plate is rotated by a motor 2| through a belt 22 that is trained over pulleys 23 and 24. The vibration is provided by discs 25 and 26 with eccentrically positioned weights 2'! and 28 thereon, respectively. These discs are mounted on the ends of the shaft as shown in Figur 3.

The form H which is pivotally mounted on a shaft 29 is positioned to rest upon the vibrating plate I 2 as illustrated in Figure 2, with the form positioned over a locating plate 30. With the form in this position a facing plate 3! is positioned in the lower end and wet facing material vibrated the form is turned over manually by the handles 35 to the position illustrated in Figure 1 where it rests upon the ejector l3.

With the form in this position the facing plate formed by the process has a different face.

The slumping action only requires a knock or 3 kick and by operating the vibrating instrumentalities of the machine for a second or the like sufiicient vibration is transmitted through the body of the machine to the element l3 upon which the block is resting to slump the material away from parts of the facing plate.

While the material is still green the block is ejected by a frame 36 having side bars 31 and 38 slidably mounted in bearings 39 and Ail, respectively on side plates 41 and 42. The frame 36 is positioned so that the lower nds of the bars 3i and 38 coact with the cams l4 and 15 whereby as the cams are elevated about the shaft I! by the hand lever 16 the green block is ejected from the form or mold. The lower ends of the bars 31 and 38 are provided with rollers 43 and M, respectively which ride upon the upper surfaces of the cams. The cams are provided with stop plates 45 and 66, respectively which limit the upward movement thereof.

As the molded block is removed from the form the facing plate 3| is removed and the concrete product is placed face up upon a table. The block is sprayed with a dry material of the same mix as that of the facing material to level off defects and after a short while the dry mate rial is absorbed by the material of the block and it is sprayed with a water vapor spray to even up the face to give it a regular cut stone appear-- ance. thirty days and may be used in broken ashler zone style with the blocks provided in different lengths and heights.

In the design illustrated in Figure 2 a form or mold similar to the mold II is hinged to a vibrator plate 48 by a shaft 49 and the plate is resiliently mounted on a frame 58 through springs 5i and bolts 52. With the parts arranged in this manner the mold 41 may be turned over about the pivot or shaft 49 so that it may be po-- 4 sitioned upon the support 53 for cleaning.

The frame 50 is provided with a stationary platform 53 to hold the mold and a vibrator 54 is actuated by a motor 55 with a belt 56.

The frame 50 is also provided with an ejector 5? with an ejecting frame 53 having rollers 59 on the lower end that ride on cams 613 with stop plates 6| on the end, the cams being similar to the cams E5 of the machine shown in Figure 1.

The cams are carried by a shaft 62 and the shaft 0 and cams are actuated by a hand lever 63, similar to the lever 16.

The facing plates 3i may be made of plastic, steel or other rigid material, or these plates may be made of rubber or other flexible material. The flexible material relieves the suction of the wet material providing a smooth face on the block.

The block is then cured for approximately This improved process for forming building blocks with facings of different designs, there fore, includes filling molds with rough material having a layer of facing material in combination with a facing block on the lower surface, vibrating the form in which the product is positioned, reversing the position of the form, again vibrating the form with the same vibrating elements or by jarring the frame, placing the finished product on a table, spraying a dry material of the same mix as that of the facing material over the face of the block and after this material is absorbed into the facing material, spraying the surface with water vapor.

With this process a building block is formed with a hard face that requires no extra water for curing.

By using face plates with cavities of different designs therein and slumping the material away from the uneven rock-like face of the facing plate blocks may be provided with numerous designs on the faces thereof and with each block having a different design.

It will be understood that modifications may be made in the process or in the method of forming the blocks without departing from the spirit of the invention.

What is claimed is:

The process of molding building blocks which comprises vibrating cementitious material having a layer of facing material on the lower surface in a block forming mold whereby the fee-- ing material is worked into cavities of a facing plate having an uneven rock-like surface facing the material, inverting the position of the mold whereby the facing plate is positioned on the upper end of the mold with the uneven rocklike face extended downwardly, and vibrating the materials with the materials in the inverted positions whereby the facing material is slumped partially from some of the cavities of the facing plate so that each block cast in the form is provided with a face of a different design.

References Cited in the file of this patent UNITED STATES PATENTS 

